Sick sinus syndrome electrocardiogram: Difference between revisions
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==Overview== | ==Overview== | ||
==Electrocardiogram== | ==Electrocardiogram== | ||
Ambulatory monitoring of the [[electrocardiogram]] ( | Ambulatory monitoring of the [[electrocardiogram]] (EKG) may be necessary because arrhythmias are transient. The EKG may show any of the following | ||
* Inappropriate [[sinus bradycardia]] | * Inappropriate [[sinus bradycardia]] | ||
* [[Sinus arrest]] | * [[Sinus arrest]] | ||
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* A prolonged [[asystolic]] period after a period of tachycardias | * A prolonged [[asystolic]] period after a period of tachycardias | ||
* [[Atrial flutter]] | * [[Atrial flutter]] | ||
* | * Ectopic atrial tachycardia | ||
* | * Sinus node reentrant tachycardia | ||
Electrophysiologic tests are no longer used for diagnostic purposes because of their low specificity and sensitivity. Cardioinhibitory and vasodepressor forms of sick sinus syndrome may be revealed by [[tilt table test]]ing. | Electrophysiologic tests are no longer used for diagnostic purposes because of their low specificity and sensitivity. Cardioinhibitory and vasodepressor forms of sick sinus syndrome may be revealed by [[tilt table test]]ing. | ||
Revision as of 23:02, 24 October 2012
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Sick sinus syndrome Microchapters |
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Sick sinus syndrome electrocardiogram On the Web |
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American Roentgen Ray Society Images of Sick sinus syndrome electrocardiogram |
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Risk calculators and risk factors for Sick sinus syndrome electrocardiogram |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Electrocardiogram
Ambulatory monitoring of the electrocardiogram (EKG) may be necessary because arrhythmias are transient. The EKG may show any of the following
- Inappropriate sinus bradycardia
- Sinus arrest
- Sinoatrial block
- Atrial fibrillation with slow ventricular response
- A prolonged asystolic period after a period of tachycardias
- Atrial flutter
- Ectopic atrial tachycardia
- Sinus node reentrant tachycardia
Electrophysiologic tests are no longer used for diagnostic purposes because of their low specificity and sensitivity. Cardioinhibitory and vasodepressor forms of sick sinus syndrome may be revealed by tilt table testing.
Shown below is an EKG demonstrating sick sinus syndrome. Atrial fibrillation is present (an irregularly irregular rhythm) which stops abruptly due to sinus arrest.
Shown below is an EKG showing the termination of a supraventricular tachycardia at about 130/min. which terminates and leaves a pause and then sinus bradycardia. This is a from of "tachy/brady" syndrome where a tachycardia is followed by a bradycardia.
- For EKG examples of sick sinus syndrome click here.